baber/WOPTO huggingface dataset:
Patent GB-740841-A (GB)
Title: Improvements in and relating to electric cutouts
IPC: H01L29/24
Filed: 1953-06-10
Abstract: A copper oxide cutout for use across components of a series circuit, comprising a disc of copper with layers of cuprous and cupric oxide on each face to form a double rectifier, as described in Specification 478,408, [Group XXXVI], is characterized in that the copper disc is first alloyed with iron and antimony to produce cutouts which have a narrow range of breakdown voltage.  In a preferred method, the copper disc is electrolytically plated with iron, then antimony, and is then dipped in a dilute solution of an antimony salt containing ferric nitrate, sodium tetraborate (acting as a flux), and tartaric acid (to increase the amount of antimony chloride in solution).  The wet disc is then heated in an oxidizing atmosphere, when the iron and antimony alloy with the copper, and a layer of cuprous oxide covered by a thin film of cupric oxide is formed on the external surfaces, the cuprous oxide being subsequently removed, after cooling, by a dilute solution of sulphuric acid.  The disc is finally subjected to a controlled annealing operation. Specification 738,975 also is referred to.
Patent GB-667894-A (GB)
Title: Improvements in or relating to chairs, settees and the like
Inventor: STEWART ROBERT
IPC: A47C7/70
Filed: 1950-06-27
Abstract: 667,894. Chairs. STEWART WOOD PRODUCTS, Ltd., and LYONS FURNITURE WORKS, Ltd. Aug. 21, 1950. [June 27, 1950] No. 15990/50. Class 52 (iii). A table 4 is normally housed in a hollow arm 2 of a chair and can be withdrawn upwardly through a slot in the upper face of the arm and swung outwardly to be supported horizontally by stops.
Patent GB-717548-A (GB)
Title: Improvements in or relating to lubricating installations
IPC: B26D7/08
Filed: 1952-06-25
Abstract: 717,548. Lubricating pumps. AUTO RESEARCH CORPORATION. June 25, 1952 [July 3, 1951], No. 15997/52. Class 102 (1). [Also in Group XXXIV] A centralized lubricating installation, suitable for the lubrication of a cloth-cutting machine, comprises a central pump block including in a single casing a reservoir, a spring-returned piston arranged to be manually operated and the spring arranged to be stressed during the charging stroke so that the stressed spring drives the piston in the discharging stroke, and a plurality of high-restriction flow metering fittings. The pump block shown comprises a manually-actuated piston E operating on a recess 41, a reservoir F and a closure G which receives a strainer H. Recesses J are provided in the pump block to receive metering devices (see Group XXXIV). The piston has sealing cups 43, 44 clamped together by a nut 45 threaded on the piston rod. When the piston E is raised against the action of a spring 49, lubricant is drawn from the reservoir F through the strainer H and a conduit 69 and past a check valve 72 into the space below the piston. When the button 40 is released the spring acts to force the lubricant from space 77 into a side channel 90 and then up through passages 91, 92 into and through the flow metering devices in the recesses J to parts to be lubricated.
Patent GB-577301-A (GB)
Title: Improved means for dressing welding electrodes
IPC: B23K11/30
Filed: 1944-08-28
Abstract: 577,301. Dressing welding electrodes by filing. PRESSED STEEL CO., Ltd., SIMMIE, W. S., and ALDRED, F. C. Aug. 28,1944, No. 16232. [Classes 83 (ii) and 83 (iii)] A tool for dressing resistance welding electrodes consists of flat files disposed in angular relationship and held against deflection. Electrodes of standard or non-standard form with conical tips may thus be dressed separately or simultaneously in situ in the machine. Two pairs of files 30-33 may be secured in or on the V-shaped surfaces of a block 34, the parts being secured by grub screws 37 in end pieces 35, 36 carrying handles 38, 39. The tool is placed between the electrodes to which pressure is applied in the normal way and the tool is given one or two quick movements of sliding and then rotation to dress both upper and lower electrode tips simultaneously. Instead of using blocks, the four files may pass through inclined slots in end pieces to which they are secured by grub screws. In a modification of this form, the end pieces have central slots into which may be placed a plate 89, Fig. 16, so that when one pair of files is removed, the end of a single electrode' may be dressed. Single electrodes may also be dressed by a tool in which the files 40, 41, Fig. 8, are secured by grub screws 43 in or on the surface of a block 42 provided with ledges 45 slidable in a guide 44 which has a bushed hole 46, Fig. 14, in its base to fit over the end of the lower electrode when dressing the upper electrode. In another form, the tool consists of blocks 61, 62, Fig. 10, formed as files and clamped between end pieces 63, 64 provided with handles 65, 66, one or both surfaces being formed as files. Specification 544,301 is referred to.
Patent GB-924128-A (GB)
Title: Method of and apparatus for ultra-fine dispersion homogenization, mixing and adding together of solids, liquids and/or gases
IPC: B01F33/40
Filed: 1960-05-09
Abstract: 924,128. Mixing appliances. A. BARICORDI. May 9, 1960 [May 26, 1959], No. 16239/60. Class 86. An apparatus for dispersing homogenizing and mixing particulate solids, liquids and gases comprises a mixing chamber having a rotatable hollow shaft 6, Fig. 1B, around which are mounted on hollow stems 11 hollow bodies 7 composed of polygonal cells. The passages in the stems 11 communicate with that of the shaft 6 and through perforations (see Fig. 4, not shown) with the interior of the cellular body #:7. A stator 5 also of cellular construction surrounds the rotor. There may be a single layer of cells 5, Fig. 1B, or a plurality of layers 5a, 5b, Fig. 1A and Fig. 13. The fluid component is introduced through the hollow shaft 6; the already comminuted solid, entrained in a carrier fluid, enters the mixing chamber axially through conduits 15, 16, Fig. 5A, or tangentially as through conduit 15a, Fig. 2A. Material in the chamber may be urged upward by a helical arrangement of the bodies 7 around the shaft 6, see Fig. 14 (not shown), assisted by vanes 7a, Fig. 2A, and discharged through the conduit 17 which may have a spiral arrangement (not shown) to facilitate the separation of gas and solids. The outer shell of the mixing chamber may have spaced walls 2, 3, between which may be heat exchange pipes 4; the inner wall 3 may be in contact with the stator 5, Figs. 1B, 5A, or be spaced from it, Figs. 1A, 2A. Part of the material may be recirculated through a conduit 13, Fig. 5A, or through the space between the stator 5 and inner wall 3, Fig. 2A. The passage in the shaft 6 may be annular, 6a, 6b, Fig. 1A, there being a single or multistart screw in the annulus to give the incoming fluid a turbulent helical motion. The stems 11 of the hollow bodies 7 are surrounded by a perforated intermediate wall 18, Fig. 7 (the cross-section of which may be a triangle as shown or other polygon with radiused corners, see also Figs. 8 and 9, not shown), over which are fixed rings 18 which carry detachably the outer cellular wall 20, which may be elliptical or hyperbolic in cross-section, or cylindrical or polyhedral, and may taper outwardly from the shaft 6. The cells are arranged in staggered layers in different planes, Fig. 13, of open hollow hexahedrons like an elongated honeycomb, the longer axes of the cells being aligned parallel or perpendicular to the central axis of the apparatus according to whether a tough or soft material is being treated. The apparatus produces a complex of intersecting micro-vortices having a powerful dispersing effect; in an example, precommmuted red oxide of iron of about 700 micron average particle size is dispersed into particles of 0.1 micron average particle size in one operation.
Patent GB-1390073-A (GB)
Title: Process for chlorinating copper sulphide material
IPC: C22B1/08
Filed: 1972-04-07
Abstract: 1390073 Recovering copper values KENNECOTT COPPER CORP 7 April 1972 [7 April 1971] 16249/72 Heading C1A Copper values are recovered from copper sulphide minerals (e.g. covelite, chalcocite, digenite or bornite) by contacting the dry copper sulphide mineral and at least one diluent material and/or chlorinatable iron values with at least a stoichiometric amount of chlorine gas based on the amount of chorinatable material present in the mixture at a temperature between 300 C. and 400 C. to form a solid reaction product containing water soluble cupric chloride and to convert chlorinatable iron values if present to volatilized ferric chloride and recovering cupric chloride from the solid reaction product. The diluent material may comprise at least one of gangue material, silica sand, carbon, activated charcoal or quartz sand and may be present in a weight ratio to the mineral of 1 : 1 to 4 : 1. The chlorinatable iron values, e.g. iron pyrites may be in mineral combination with the copper sulphide mineral, e.g. in a molar ratio of at least 1 : 1 the sulphide mineral being in the form of an ore, ore concentrate or crushed ore. The chlorine gas which may comprise air or nitrogen may be passed in a continuous stream through the mixture in a closed system after initially flushing with nitrogen and the cupric chloride formed recovered by water leaching and precipitation of copper values from solution.
Patent GB-336235-A (GB)
Title: Improvements relating to nitrocellulose
IPC: C08B5/02
Filed: 1929-05-27
Abstract: 336,235. Picton, N., and Imperial Chemical Industries, Ltd. May 27, 1929. Cellulose nitrates.-Wood pulp board is divided into substantially uniform small pieces without affecting the conglomeration of the fibres, and the small pieces are treated with nitrating acid containing not less than about 40 per cent of nitric acid so as to produce a nitrocellulose of high density and uniform composition which is suitable for the manufacture of propellent powders, blasting explosives, varnishes, finishes, films, leather-cloth, celluloid and linoleum plastics. Sheet wood pulp may be subdivided into uniform pieces by a machine commonly used for cutting sheets of nitrocellulose plastics into powder grains. The pieces may be about oneeighth of an inch square and have a bulk density three or four times that of well-pressed cotton linters. The proportion of nitric acid is varied according to the class of wood from which the pulp is prepared and in the case of hard sheets, the concentration of nitric acid may be 80 per cent of the acid mixture. The volume of acid used may be as low as five times the weight of the cellulose. Nitration may be effected by the pot process and after removing the acid and drowning in water, the product may be stabilized and treated to lower the viscosity in known manner. Alternatively, a displacement or mechanical process or a combined mechanical and displacement process may be used. The product may be finished in the dense condition in which it is formed, or it may be pulped and then finished in the usual manner. Instead of cutting up the wood pulp sheets in a machine used for cutting sheets of nitrocellulose plastics into powder grains, the sheets may be passed through a paper shaving machine to form narrow strips which are then cut into grains by means of a guillotine or by attaching a suitable appliance to the stripcutting machine. The pieces may also be punched out as small discs, or for larger pieces an ordinary guillotine machine may be used.
Patent GB-350214-A (GB)
Title: Improvements in or relating to portable railway turnouts
IPC: E01B23/06
Filed: 1930-05-27
Abstract: 350,214. Railway turnouts. BOUSHEAR, H., 1405, Moodie Street, Fort William, Ontario, Canada. May 27, 1930, No. 16354. [Class 104 (ii).] A portable turnout suitable for mine trucks comprises two sets of rails 7, 8 resting on plates 4 having depending flanges 5 fixed by pins 6 in grooves formed in shoe members 3 laid across the main lines 1. The ends 9, 10 of the outer rails 7, 8 carry inclined extensions 11 which rest on the lines 1 and are fixed thereto by chains passing under the lines 1 and attached to a bar 15 bolted to the extensions. The ends of the inner rails 7, 8 canverge to a point and are provided with guard rails 17. Extending from the rails 17 are switch rails 18, 19 connected by a rod 23 and held with the point 19 open by a spring bolt 22 engaging the point 18. The plates 4 are anchored to the rails 1 by chains 27, and tongues 25 cut out of the plates are turned up to support the rails 7, 8. The members 3 carry lugs 30 on which are pivoted levers 31 carrying the spindles 33 of wheels 34 resting on the rails 1. The levers are connected to a cross-bar 35 connected to a rod 36, pull on which turns the levers on the spindles 33 and lifts the turnout off the rails 1 to enable it to be moved to another position;
Patent GB-1603154-A (GB)
Title: Electrochemical cells with solid electrolytes and electrodes
IPC: H01B1/06
Filed: 1978-04-25
Abstract: The invention relates to a high energy density electrochemical cell, the electrodes and the electrolyte consisting of solids. Its negative electrode consists of metal, while its positive electrode contains active materials which conduct both ions and electrons.
Patent GB-246028-A (GB)
Title: Improvements in or relating to sound reproducing devices
IPC: H04R13/02
Filed: 1925-06-26
Abstract: 246,028. Widdowson, F. June 26, 1925. Magnetic instruments; diaphragms. - An electromagnetic sound-reproducing device comprises a centrally fixed diaphragm the peripheral portion of which is free to vibrate, and a second diaphragm surrounding the first and rigidly fixed along its outer periphery, both diaphragms being acted upon by the same vibrating means. The circular diaphragm 7 is centrally secured to an adjustable pole 3 surrounded by an operating winding 17 enclosed in a casing 1 fitted with an annular pole piece 5. The annular diaphragm 12 rests on a ring 13 of non-magnetic material and is secured in an end cap 9; the edges of the diaphragms 7, 12 overlap the edges of the pole piece 5. An energizing coil may be provided in addition to the operating winding 17, and in the case of a " watch " type receiver the central pole 3 is integral with the bottom of the casing.
Patent GB-513376-A (GB)
Title: Improvements in radiator grilles for motor vehicles
IPC: B60R19/52
Filed: 1938-06-03
Abstract: 513,376. Radiator grilles. AUSTIN MOTOR CO., Ltd., and LORD, L. P. June 3, 1938, No. 16616. [Class 64 (iii)] A grille for use in front of a motor vehicle radiator consists of separate removable horizontal curved bars C, spaced apart by downward end projections such as e at both ends, and sliding vertically between the bonnet edge A and one or more pillars B. The edge A has a vertical groove a to receive the flange e<1> at the outer end of the bar. A slot c<2> in the other end is engaged by the flange b at the side of the pillar B. The groove and flange arrangement at the bar ends may be interchanged. Rattle is prevented by a free spring washer, bearing against the flange b in the recess D of the block c. The block E may be similarly adapted.
Patent GB-598079-A (GB)
Title: Improved insulated electric conductors
IPC: H01B7/40
Filed: 1945-06-29
Abstract: 598,079. Supporting electric cables. COMMUNICATIONS PATENTS, Ltd., and ROSCOE, R. V. June 29, 1945, No. 16623. [Class 36] The outer sheath 5 of an insulated conductor is insulating and flexible and has an integral fin 6 which tends to partly encircle the sheath exterior. The fin, which may be discontinuous, receives the securing means which are obscured by the sheath. When the sheath is formed by extrusion, the fin is formed at the same time. When the sheath is formed of thermoplastic material, the fin or fins may be formed separately also of thermoplastic material and be welded to the sheath.
Patent GB-546782-A (GB)
Title: Improvements in or relating to containers for commodities and packages thereof
IPC: B65D30/08
Filed: 1940-11-18
Abstract: 546,782. Packing; paper and like bags. WATERS, H. F. Nov. 18, 1940, No. 16635. [Classes 94 (i) and 94 (ii)] Relates to a container comprising an outer bag of paper with an inner lining of materialwhich can be sealed by heating, such as rubber hydrochloride or like thermoplastic and fluidproof material. The side walls 12, Fig. 1, of the container are formed with gussets 13, and according to the invention, a part N of the outer bag is removed near the tops of the gussets. When the mouth of the container is closed, as shown in Fig. 2, by bringing the front and rear walls together and sealing them by heat and pressure, all the parts that are in contact with one another in the sealed area are parts of the walls of the inner bag.
Patent GB-551648-A (GB)
Title: Improvements in or relating to seams for bags made from flexible sheet material
IPC: B65D33/22
Filed: 1940-11-18
Abstract: 551,648. Seaming non-metallic sheet material. WATERS, H. F. Nov. 18, 1940, No. 16636. [Class 42(i)] [Also in Group XVII] A bag or container made from a sheet 10 of flexible material such as kraft paper, sulphite bond or parchment paper, sheeted transparent or translucent cellulose material; e.g. regenerated sheet cellulose, rubber or rubber hydrochloride sheeted polymerized resin or protein film, coated on the inner surface with a.coating 11, which may be thermoplastic, e.g. rubber hydrochoride is provided with a seam by arranging bands of thermoplastic adhesive on marginal areas of the material, heat being applied along a longitudinal strip narrower than the band of adhesive .by an element 17, the backing element 18 being e.g. of rubber. The seam may constitute the bottom closure, and, after filling a similar seam may be formed to constitute the top closure.
Patent GB-425338-A (GB)
Title: Improved means for adjusting the actuating mechanism of the counters of gas meters
IPC: G01F15/06
Filed: 1934-06-04
Abstract: 425,338. Gas meters. FORRESTER, H. J. C., 88, Chancery Lane, London.- (Naamlooze Vennootschap Machinerieen-en Apparaten Fabrieken ; 30, Croeselaan, Utrecht, Holland) June 4, 1934, No. 16648. [Class 54] [See also Group XIX] A spindle a, Fig. 1, oscillated by the diaphragm of a gas meter operates the friction ratchet drive z of the counter by means of connecting rods e pivoted at g to a block b which may be adjusted along a lever arm c carried by the spindle a by turning a nut d. The block b is maintained in contact with the nut d by another nut or by a spring f. Relative rotation between the parts b, c is prevented by forming the block b with a recess engaged by two flats on the arm c or by providing the block b with a slot engaged by a pinion in the arm c. In a modification shown in Fig. 3 the rods e are pivoted directly to the arm c which may be adjusted in a bush and a recess i in the spindle a by turning the nut d. The arm c is then secured to the spindle a by means of a nut k.
Patent GB-1422806-A (GB)
Title: 2,2-disubstituted benzodioxoles
IPC: C07D317/72
Filed: 1973-04-06
Abstract: 1422806 1,3-Benzodioxole derivatives INSTITUTO LUSO FARMACO D'ITALIA SrL 6 April 1973 [11 April 1972 20 March 1973] 16730/73 Heading C2C The invention comprises 1,3-benzodioxole derivatives of formula and their optical isomers, stereoisomers, and pharmaceutically acceptable salts, in which R represents hydrogen, C 1  to C 4  alkyl, unsubstituted or substituted by halogen or hydroxy, or aryl or aralkyl which is unsubstituted or substituted in the aromatic ring by halogen, alkyl, hydroxy or alkoxy; or R and -(CH) m - together form a spirocycloaliphatic group of 4 to 7 carbon atoms; R<SP>1</SP> represents hydrogen, one or more halogen atoms, C 1  to C 4  alkyl, halogenated lower alkyl, a methylamino group hydroxy, alkoxy, a sulphonic group, a sulphonamide group, an N,N - di - alkylsulphonamide group, nitro, amino, substituted amino or an alkanesulphonylamino group, or R<SP>1</SP> can additionally be a benzenic ring fused to the benzodioxole ring; R<SP>2</SP> represents a hydrogen atom or an alkyl, aryl or hydroxyl group; m represents 0 or 1; R<SP>3</SP> represents hydrogen, C 1  to C 4  alkyl, aryl, hydroxyl or cyano; n represents 0, 1 or 2, and is different from 0 when m is 0; and represents a substituted or unsubstituted amino group with the proviso that when R is methyl and is -CH 2 CH 2 - or -CH 2 CH 2 CH 2 -, -NR<SP>4</SP>R<SP>5</SP> is not dimethylamino or piperidino and when R<SP>1</SP> and R are both hydrogen, and -NR<SP>4</SP>R<SP>5</SP> is not isopropylamino. The compounds of the invention may be prepared by reacting a pyrocatechol (or a reactive derivative thereof) of the formula with (a) a ketone of the formula in the presence of a dehydrating agent or an acid catalyst or (b) a dibromine derivative of the formula or a monobromine derivative of the formula or an acetylenic derivative of the formula R-C#C-(CH 2 ) n -R<SP>6</SP> in the presence of a basic catalyst, followed, where necessary by converting the radical R<SP>6</SP> into the group NR<SP>4</SP>R<SP>5</SP>.
Patent GB-189407-A (GB)
Title: Improved apparatus for the wet separation of granular materials
IPC: B03B5/18
Filed: 1922-06-19
Abstract: 189,407. Dickson & Mann, Ltd., and Thornton, C. R. June 19, 1922. Jigs. - Apparatus for the wet separation of granular material such as coal or cinders from powdered or like materials such as town refuse, comprises a liquid-containing tank provided with a reciprocating screen, to one end of which the material is fed, the screen moving rearwardly below and forwardly above the surface of the liquid. The material is fed intermittently or continuously from a hopper 16 on to the screen 7 located substantially midway in the frame 6, the rear end of which projects upwardly to form a weir or baffle 8. Motion is imparted to the screen by means of links loosely mounted on the crank shafts 11 driven by the belt-pulley 15. The granular material travels towards the forward end of the screen and is discharged into the shoot 21 by means of the endless rake 20 co-operating with the weir 9 which slopes upwardly from the surface of the screen. The powdered material passes through the screen and is removed in the form of sludge from the 'bottom of the tank 5 by the endless elevator 22 into the discharge hopper 23. The granular material may be graded by discharging it into a series of similar tanks provided with screens of gradually increasing mesh.
Patent GB-821999-A (GB)
Title: Process for the catalytic oxidation of olefins
IPC: C07C45/35
Filed: 1958-05-27
Abstract: Catalysts for use in the production of unsaturated aldehydes and ketones by the oxidation of olefines contain bismuth and molybdenum with or without phosphorus.  The catalysts may be prepared by reacting a bismuth salt with molybdic acid or phosphomolybdic acid and may be represented by the formula BiaPbMocOd in which a may be 0.5-18, b may be 0-5, c is 12 and d is 36-76.  The catalyst may be supported on the usual supports.ALSO:Unsaturated aldehydes and ketones are produced by a process comprising contacting a gaseous mixture of an olefine and oxygen with a catalyst containing a compound of bismuth and molybdenum at elevated temperature.  The catalyst may also contain phosphorus and may be supported on silica, for example, if desired.  Water may also be present in the reaction mixture.  The process is particularly useful for the conversion of propylene to acrolein, isobutylene to methacrolein, a - or b -butylene to methyl vinyl ketone, pentene-1 or pentene-2 to ethyl vinyl ketone and/or pentene-3-one-2, 2-methylbutene-2 to methyl isopropenyl ketone, and cyclopentene to cyclopentenone-2.  The olefines may be mixed with other hydrocarbons, for example, a propylene-propane mixture may be used as the feed.  It is preferred that the catalyst should be used in the form of a fluidized bed.  In the conversion of propylene to acrolein other oxygenated compounds such as acetaldehyde, acetic acid and acrylic acid are also obtained.